Stereoscopic viewer and slide holder



FIG. 1 is a front elevational view of a stereoscopic viewer and slide holder, showing my new design;

FIG. 2 is a right side elevational view, the left side being a mirror image thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a rear elevational view thereof.

The broken line disclosure of the slide in FIG. 1 is for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for a stereoscopic viewer and slide holder, as shown and described. 